Mold for concrete building-blocks.



No. 896,330. 7 v PATENTED-AUG. 18, 1908.

' (LJ. SGHEELKY.

MOLD I'OR CONCRETE BUILDING BLOGKSL APP 0N w n H ll III II III ill I III II II. I. III. ll 7'' ll lll .No. 896,330. PATENTED' AUG; '13, 19083,

0. J. SGHEELKY.

MOLD FOR CONCRETE BUILDING BLOGKS.

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N0. 896,330. PATBNTED AUG. 18, 1908,.

0. 'J'. SUHEELKY. MOLD FOR GONCRE'TEBUILDING BLOCKS.

APPLICATION FILED nov. s, 1906.

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Uiu'rnn' srains PATENT onnion CHRISTIAN J. SCHEELKY, OF NEWPORT NEWS, VIRGINIK.

MOLD FUR CONCRETE BUILDING-BLQQKS,

Specification 01 Letters Patent.

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Application filed Eovember 6, 1906. Serial No. 342,284.

Toaliwhom it may concern:

Be t known that I, CHRISTIAN J. Sonnetiii, a citizen of the United States, residing at ffacture of building blocks of artificial stone shape of the block may be varied asnve-ll as or-cement, generally known as hydraulic building blocks and specifically called grano-.

lithicveneering and building blocks, and has forits object the production of blocks of that class having peculiar and novel characteristics by means of molds of peculiar and .simple construction, whereby blocks of different configuration or size'can be made in a single.

mold, either by the adjustmentoi the parts of the mold upon a permanent base, or by the addition of readily adjustable parts to a single mold, or by'the combination of an adjustable mold with removable and adjustable additional parts, thus obviating the use of a large number of molds to produce blocks'of' difierent sizes or configuration, thereby .reduoing the cost of construction of a building; since in many cases, where a multiplicity of blocks of a common size or shape'are reso quired', and-but a few blocks of different or peculiar sha es are needed, it would be a very decided ad itional expense to provide separate molds for the few differently shaped blocks required.

My invention, therefore, consists in the provision of a mold for hydraulic blocks provided with novel means for adjusting or regulating the size of the same.

Myinventionstill further. consists in the provision of a mold for hydraulic blocks adustable as to size and provided with removable and adjustable pieces whereby the its size.

My invention still further consists in the provision of a mold for hydraulic blocks provided with removable and interchangeable piecesprovided with means for adjusting the same to different sized molds.

forms. a part of this speci a portion of a wall to illustrate the use of my improved block to form ai'acing or veneer for the outer portion thereof, Fig. 2 is a perspective view of a rectangular block made" according to my invention, Fig. 3 is a per spectiveview of an adjustable mold, Fig. 4-is a perspoctiveview of an' adjustable mold with a removable mold piece clamped thereon, Fig. '5 is a view of amold provided."

with my improved removable and adjustable end or angle piece, -Fig. 6 is a perspective view or an angle pieceadj istable to different molds showing more cle arly the means for retaining the' several parts thereof in their proper relative position, Fig. 7 is a perspective view of a mold having an adjustable end piece for rightnngle corner blocks, Fig. 8 is a detail view of the end-piece shown in Fig. 7, Fig. 9 is a cross-sectional view to show the bolt on tie support. Fig. 10 is a detail View of a mold clamp. Fig. 1 1 is a detail view of a recess block. Fig. 12 is a view of the mold sh owing-the various auxiliary parts attached thereto.

The mold consists of a base plate 1 of a rectangular form and of a size sufliciently large to accommodate the largest sized frame designed to be used thereon.

2, 3, 4 and 5 representthe face and bael plates and the two end pieces of the mold cast or rolled iron, having its upper edge 6 flanged outwardly at right angles to its side and one of its ends 7 bent at a right angle to the face so as to provide a means for adjusting or regulating the size of the molds. part 7 is provided with a slot 8 extending practically throughout its entire length and at the other end of the piece is another open ing. A bolt 10 provided with a nut 11 pass ing through this hole, its squared shoulder sliding ikthe slot 8- and its head 13 abut-tin 'ag'ai'rrstwhe side of the bent end 7 permits dl the ready adjustment of the pieces to form a mold of different sizes from a simple set of mold pieces. The four pieces of the mold are formed or provided with an inwardly turned head or flange 14 at their lower edges so as to form a proper finish to the block, and preferably, I ropose to use a separate piece 14 to form t is lower head, so that I may vary the size or configuration of the resulting block. .Where this is done it maybe attached cation: Flgure 1 isto the sides and ends of the mold by bolts or The l e the mold of differently shaped pieces, blocks can be formed with ends of totally different "shapes and angles.

height of the mold.

the recesses in the blocks consist of rectanguscrews, or it may be made as a separate auxiliary frameplaced on the base plate and the mold frame placed above it and sup orted in position by its .own weight, and wiere it is desired to make a block of more than ordi-" nary height this auxiliary frame may be of any desired size so as to materiallyalter the The means for forming under usual conditions they wi 1 not require. means for attaching them and as they Wlll.

easily slide on the frame their position can be changed. with great readiness, so as to form the recesses m the blocks in any desired pos tion.

or auxiliary pieces which is of the desired angle. are either made of a single. piece of metal, rolled or cast to the desired'configuration or they may be made of several pieces rigidly attached together as, except where my adjustable piece is used, they are made of a predetermined width, but are adjustable relatively to the length of the mold so as to form blocks of difierent-lengths, and by the use of different angle pieces blocks of different an les and by theuse ateither end, of

These angle ieces 18 are formed with a bottom 19, and side pieces 20, having flanges 2]. on their edges, and

flanges "22 -'on their lower ends which slide and rest upon the flanges 6 of the mold. The bottom .19 extends inside the mold to the base plate and is chamfered at the lower edge to the proper angle to make a close joint with the base plate. The'angle pieces are held in position on-the mold by means of. clamps 23 embracing their lower flanges 22 and the flanges 6- of the mold, these'clamps 323 being fastened by means of a cam 24 journaled in the depending end of the clamp 23, and provided with a handle 25 for turning the cam and fastening the clamp in position. 4

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The adjustable angle piece illustrated in Fig. 6 is of the general configuration of the other form of angle pieces before described, but instead of bein made in a single piece it is made in two 1i e sections attached to gether by suitable cleats and permittin of the insertion' in the bottom of additiona bottom plates -so as to accommodate'it to molds. of different Widths. As shownfin {6 the two sections 2626' of the adjusta e angle piece, have each attached to the lower side :of their bottom" plates and-near When it is desired to form an angle block .it is necessary to utilize one of the removable These auxiliary pieces 18 (see Fig. 5)

each end thereof, a length of angle iron -.27, forming a cleatand. so placed that-when the two sections 26-26 are in position the faces of the cleats on one section will abut against the faces of the cleats on the'other section and thus hold the two sections-together. .When 'it is desired to widen the angle piece, a center plate 28, of any desired width is inserted between the two side sections. These. center plates-28 areprovided on their lower sides with lugs'29, adapted and designed to embrace the cleats 27 on the sections 26 and to permit the side pieces to be drawn together to embrace the central plate, the edges of the bottoms of the side sections and of the center plate being properly chamfered off so as to make as close a joint between them as possible.

In Fig. 4' is shown an angle piece or end plate designed to be used where blocks of less length than the maximum length of the mold. are to be formed, this end plate being perpendicularly arranged and upheld by suitable supporting flanges resting upon the flanges of the mold members to which it is secured by clamps similar in construction to those shown in Figs. 5 and 6.

In Fig. 7 is shown an angle piece for forming corner blocks, such for example as shown at ain Fig. 1, the short right angle limb of the block being formed by means of a pocketed angle piece 30 which has a depending rear wall 31 and a removable front wall 32,

the entire angle piece being adjustably mounted on the sides of the mold and fixed in position by means of cam clamps similar the mold and provided at its arched center with an aperture to receive the tie'bolt It will be seen that by this construction the bolt 35 will be held perpendicularly in position and the material molded around it so that when set the bolt will project centrally of the finished block in proper position to engage the block supports or frame to which they are secured in the laid-up wall. The operation of my device is as follows: The bed plate 1 being placed in position on a-table firm enough to permit of the proper tam ing of the material for forming the bloc s, the pieces of the mold 2, 3, 4 and 5 are laid thereon, and by means of the bolts 10 and nuts 11 they are attached together so as to form the predetermined sized block. The lugs 1.- for forming the recesses in the blocks are placed in position and the'coinposition of sand, cement and gravel, roperly mixed and moistened is placed in t e mold and tamped' down during the operation care being-taken toinsure that all the voids are. properly filled with-cement and that no air remains in the mixture, as either of these will cause defects in the blocks which may show during the curing or settin or perhaps may not show on the surface the lock but will cause the blocks to crack or disintegrate after they are in position in the building. Vheu the mold is hlled the upper surface isleveled off with a pallet or trowel and returned tothe hatch, the mold is then lifted from the base plate and, with the blocks carried to the drying floor, where it is reversed, the screws loosened and by a slight tap on the sides and ends the block is detached from the mold. When it is desired to form block with angle ends, an angle .piece of the proper shape is placed in one 'or both sides of the mold and fastened in 7 position by means of the clamps the mate- 'IIELl to form-the block tamped into the molds andangle pieces, but before removing the block the angle pieces must be carefully removed and the block laid on its side to remove the mold frame. In using the adjust able angle piece, it is first determined what width of mold is to be used and by inserting This is absolutely necessary where the blocks are used as a veneer or front facing of buildings constructed of brick or other material.

Having thus described my invention and its mode of operation, What I declare as new and desire to secure by patent is:

1 In a mold for hydraulic blocks, having adjustable end and side ieces and means for fastenin the same toget ier, the combination therewit h of an independent adjustableand I set forth.

removable angle piece desi ned and adapted to be adjusted to molds of ilferent widths as '2. In a mold for hydraulic blocks the combination with a base and side and and pieces, of an adjustable angle piece designed to be attached to molds of different widths and adapted to be moved lengthwise thereof.

3. In a mold for hydraulic blocks, the com bination with a permanent base and adjustable side and and pieces, of an angle piece composed of side and bottom portions and a removable center plate whereby the same may be adjusted to the widths of different molds.

4. A removable and adjustable. angle piece for hydraulic molds consisting ofislde their lower sides and a detachable bottom plate havin lugs which embrace said cleats and fasten t e angle pieces together.

5. 'A mold for hydraulic blocks consisting of a base plate and adjustable side and end pieces, eacihformed with a flange on its up per edge, said'flanges adapted to hold recess forming blocks, said recess formin blocks having lips adapted to overhang and engage with said flanges and means whereby said side and end pieces may be adjustably fastenlel together, to form the frame of the mo 6. In a mold for hydraulic blocks, the comprising adjustable side and end. pieces, each.

formed with a flange on its upper edge; an

adjustable arched strut spanning said sides and resting upon the flanges thereon, and

adapted to support and center a tie bolt to be molded into place, and means for clamp; ing said arched strut to said flanges.

9. In combination with a mold, an angle forming member cooperating therewith, said member comprising back and side walls, said back wall projecting downwardly between the sides of said mold, and means for securing said angle forming member and mold together. 10. In combination with a mold, an angle forming member cooperating therewith, said member comprising back and side walls, said back wall extending approximately to the bottom of the mold, said member adapted to be adjusted longitudinally thereof.

' 11. In combination with a mold, an angle forming member cooperating therewith, said member comprising back and side walls, said back wall extending approximately to the bottom of said mold, a removable front wall for said angle forming member, and means for .locking the several parts together,

12. A block forming mold comprising a main mold, an attachable angle formin member having back and side walls, sai

back wall ezrtending to the bottom of said main mold, the sides of said, member adapted torest upon thev sides of the main mold to su wa for-said angle formin memben and means for locking the several parts together.

13. In combination with a mold, an auxiliary mold arranged at an angle therewith. and adapted; to be moved longitudinally ort said member, a removable front thereof, said-,auxiliary mold comprising a angle formin member adapted to rest upon back andside walls, said back Wall extending the flanged side of the mold, and means for approximately to the bottom of said mold, lockin said flanged sides together. and a means for locking said auxiliary mold Iii-testimony whereof I have hereunto set 15 g 1 r; iniposition. 4 myhand in presence of two subscribing wit 4 1 l f {14..1'11 c' omtlgination with a mold, an sngle nesses. o'rminginem er cooperatin therewith, said I i r T member. comprising back an zl side walls, said CHRISTIAN SC HEELLA' back well extending to the bottom of said Witnesses: i i-mold, said mold and angle forming member G. FRANKLIN LENZ,

' evingfianged sides,.tl1e fiangedsides of the M. S. LEE. 

